The human body is made up of several organ systems that all work together as a unit to make sure the body keeps functioning. There are ten major organ systems in the body, each of which plays a different role in helping the body work. Circulatory System. This system is made up of the heart, blood, blood vessels, and lymphatics.
Pleasant Lake, Michigan. Pleasant Lake is an unincorporated community in Jackson County, Michigan, United States. Pleasant Lake is located in Henrietta Township just south of the lake itself. Pleasant Lake has a post office with ZIP code 49272. In addition to the post office there is a party store, a gas station, and Christ Episcopal Church.
Bear Lake (Figure 1) is located in western Manistee County, within the northwestern Lower Peninsula of Michigan. The town of Bear Lake lies on the southern shore of the lake. Bear Lake is a natural lake, having been formed during the Wisconsinan glacial stage (10,000 to 75,000 years ago). The Bear Lake watershed encompasses about 7,543 acres within the Manistee River watershed of Lake Michigan.